.alive-design {
  height: 390vh;
  background-color: #000;
  position: relative;
  margin-top: -100vh;

  .sticky-content {
    position: sticky;
    top: 0;
    width: 100%;

    .title-wrap {
      position: absolute;
      z-index: 12;
      top: 50vh;
      transform: translateY(-50%);
      left: 0;
      width: 100%;
      text-align: center;
      @include flex-center();

      strong {
        font-weight: 400;
        font-size: 6.5vw;
        letter-spacing: -.06em;
        color: hsla(0, 0%, 100%, .5);
        margin: 0 10px;
      }

      .lock {
        width: 10px;
        height: 10px;
        opacity: 0;
      }

      .purple {
        font-weight: 700;
        color: #ea2020;
      }
    }

    .lock-page {
      transform-origin: center;
      overflow: hidden;

      // design ul
      .design-snapshot {
        transform: scale(1.3);
        margin: 0;
        padding: 0;
        list-style-type: none;

        // li
        li {
          margin: 0 1vw;
          padding: 0;
          will-change: transform;
        }

        @include justify-center;

        &>li:first-child {
          margin-left: 0;
        }

        &>li:last-child {
          margin-right: 0;
        }

        &>li>div {
          width: 17vw;
          height: 36.04vw;
          margin-bottom: 34px;
          opacity: 0;
          will-change: opacity;
          position: relative;
        }

        &>li>div .phone-content {
          position: absolute;
          inset: 8px;
          width: calc(100% - 16px);
          height: calc(100% - 16px);
          z-index: -1;
          will-change: opacity;
        }

        &>li>div img {
          display: block;
          width: 100%;
          height: 100%;
        }

        .center {
          transform: translateY(38vh);

          .frame-wrap {
            opacity: 1;
            position: relative;
            z-index: 10;
            overflow: hidden;

            .lock-page2 {
              width: 91%;
              height: 94%;
              position: absolute;
              top: 50%;
              right: 7px;
              transform: translateY(-50%);
            }
          }

          .frame {
            opacity: 0;
            transform: scale(.3);
            transform-origin: center top;
            border-radius: 2vw;
            overflow: hidden;
          }
        }
      }
    }
  }
}